I have a problem with Avantis. My screen never turns on and the mixer doesn’t start itself. Even if I turn it on and off, nothing changes.
That is clearly not normal behavior. I would suggest that you reach out to your distributor (https://www.allen-heath.com/community/distributors/) or the official A&H Support group (https://support.allen-heath.com/hc/en-gb) for more help and troubleshooting.